Rockwell Studio 5000 Logix Designer Incorrect Authorization RCE (SD1783)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(327600);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/20");

  script_cve_id("CVE-2026-9127");

  script_name(english:"Rockwell Studio 5000 Logix Designer Incorrect Authorization RCE (SD1783)");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote Windows host is affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Rockwell Studio 5000 Logix Designer installed on the remote Windows host is affected by a remote code
execution vulnerability. Due to incorrect authorization on a configuration file, any authenticated user can modify the
paths of external tools configured within the application. An attacker could alter the configuration to point to a
malicious executable, resulting in arbitrary code execution when any user interacts with the external tools
functionality. (CVE-2026-9127)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1783.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d53c0ce7");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Rockwell Studio 5000 Logix Designer version 32.05, 33.02, 34.02, 35.01, or 36.00 (as applicable to the
installed release branch), or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-9127");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:rockwellautomation:studio_5000_logix_designer");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SCADA");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("rockwell_studio_5000_logix_designer_win_installed.nbin");
  script_require_keys("installed_sw/Rockwell Studio 5000 Logix Designer");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Rockwell Studio 5000 Logix Designer', 'type': 'app'},
      'requires': [
        {'scope': 'target', 'match': {'os': 'windows'}}
      ],
      'check_algorithm': 'default',
      'constraints': [
        {'fixed_version': '32.05', 'fixed_display': 'V32.05'},
        {'min_version': '33.00', 'fixed_version': '33.02', 'fixed_display': 'V33.02'},
        {'min_version': '34.00', 'fixed_version': '34.02', 'fixed_display': 'V34.02'},
        {'min_version': '35.00', 'fixed_version': '35.01', 'fixed_display': 'V35.01'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:result);